Jupiter on 1960 July 8/9 at 21:21+6m PST (05:21 UT) as sketched by Jim Low. C.M.(1) 157°, C.M.(2) 359°. 4" reflector at 130x. Seeing 3/10. Transparency 4 to 5/5. North is down. Note that time zone used is 120th merid. or Pacific Standard.

Jupiter on 1960 June 20/21 at 21:45+10m EST (02:45 UT) as sketched by Jim Low. C.M.(1) 97°, C.M.(2) 78°. 4" reflector at 130x. Seeing 2-3/10. Transparency 3/5. North is down. This observation was made only 9h. 29m. from the time when Jupiter is nearest Earth (Jupiter nearest Earth on June 21d. 12h. 14m. UT at 4.238969 A.U.).

Jupiter on 1960 June 18/19 at 23:30-23:50 local time (03:30-03:50 UT) as sketched by K.R. Brasch. 8" reflector at 165x. Seeing 2-3. Transparency 2. More detail visible at intervals, could not be recorded due to bad seeing conditions.

Jupiter on 1960 June 18/19 at 22:20+25m EST (03:20 UT) as sketched by Jim Low. C.M.(1) 162°, C.M.(2) 159°. 4" reflector at 130x, 167x. Seeing 4/10. Transparency 4½/5. North is down. Satellites I, and III were observed to be in conjunction (i.e.—forming a 90° angle with the zones of the planet) at 23h 28m. EST (04h 28m UT), and they were about 20" apart.